This is really difficult to see and may required you click on the photo and enlarge it. This is a picture of a gentleman’s retina in the superior temporal retina of the right eye. In the lower right, if you look close, the retina appears to bubble up. This bubbling up is not a retina detachment, but a “retinoschisis”. A retinoschisis occurs when the outer layer of the retina pulls away from the inner layer of the retina, and then bubbles up. The retina is still attached because the inner layer is attached.
Retinoschisis generally does not lead to a ful retina detachment, but needs to be watched closely to see if risk for detachment increases.